HowTo: P11 Headunit Installation

[CurtDragon]

It would probably work out fine, but I have never seen schematics of what wire goes to what speaker on those amps in the rear....

phatg20 has the fsm and it show the wiring schematics of the whole unit

[Gealousy]

phatg20 has the fsm and it show the wiring schematics of the whole unit

True! I don't see why it wouldn't work then... that'd make the front speaks a breeze to swap with aftermarkets...

[Garrett]

Nice write up bro, but why not just do a traditional amp by-pass and just use a metra kit on the HU? I did a HU in a P11 day before yesterday, and thats what we did, amp by-pass is really easy too. :-)

--Garrett

[ChickenWing]

P10 WRITEUP

to all those who requested a p10 HU installation write-up. theres a good chance i will be doing one late this year/early 2006. just as detailed with just as many pictures.

[2000GT20W]

Ok i bought the stuff from walmart i got everything for 70 bucks, scosche convertor part# FAI-3AF and harness connector part# NN032F as well as antenna adapter kit part# UAAF , a'l post some pictures when ever i learn how too

[lil_lam]

Definately post pics, I might be interested in that for mine.




I've got one question though. Has anyone tried cutting the connector off the Bose amp in the trunk, then splicing the speaker wires together? So that you don't have to run new wires into the doors, etc.

i've done that. had a diagram somewhere at home. i ran all the speaker wires from the head unit to the trunk and spliced right into the existing speaker wires. have fun trying to tie in the tweeters with a 4 channel HU

i ended up patching into the existing factory wire harness and running my pre-amp outs from the HU to the wires that are carrying the line level signal to the amp. this way, i by passed the scoshe audio adapter. i think it actually sounds better. i had a post about this i'm trying to find. of course i haven't been on the board for about 18 months...

[2000 G-Twenty-T]

i like that you label chicken wing on all the pics so now one ca steal them lol

[russki]

"I cannot get those damn screws out on the brackets either! It's pissing me off!! I've never seen seen anything so tight (well except my gf)!"

I start doing mine couple days ago and broke 4 Mastercraft screwd. on those screws.Then I figure out that if you just try to screw them in first and then out it works pretty easy.Just tight them little bit until first click.

Question:
Hey guys,where do I find amplifier?Do you recommend to ged rid of it or keep it? My alpine pumps 60W per channel anyway ?

[Nismo1182]

Its in the trunk under the rear shelf.

[russki]

Thanks man,stupid of me not look there

Do I keep it or remove it,that is the question

[LoSt]

If you remove it, you'll need new speakers. I was doing some BOSE system research, and BOSE speakers are 2 Ohms. Regular car speakers are 4 ohms. So if you plug a headunit directly to the BOSE speakers, it'll look like a short and possibly overheat/burn up. Similar happens if you plug a "normal" speaker into a BOSE amp: it sees twice the load and output is cut in half.
My experience is that OEM speakers cannot handle the higher watt output of aftermarket Headunits, and they always blow within a few weeks....

lil lam said he wired the RCA pre-amp outputs into the BOSE amp and it sounded pretty good. Sounds like a good idea to me..




More direct answer to your question: If you plan on getting new speakers, then remove/bypass the BOSE amp.
If you're gonna keep the BOSE speakers, then you need to keep the BOSE amp b/c you'll fry your headunit if the speakers don't blow out first.

[benplanet]

noobish question, sorry guys.. going to install new head unit soon and mew speaker setup..

again i apologize for this stupid question but is the Scosche 2/4 Channel Speaker Level Converter really necessary? what does it do? can i do without it or does it make things easier?
ps. i have a 1991 G20 5spd.

thanks for your help!!!!!!!

[ChickenWing]

if u replace everything you dont need the converter, otherwise, get the converter to keep everything running right.

[benplanet]

chikenwing you rock

i am replacing everything so i should be fine i guess "_"

[JustBlaze4Eva]

soo uhhh where can i find this Scosche adapter thingy...i need one and my luck...i can't find one...online that is...

[ChickenWing]

walmart(please read the write-up)

[JustBlaze4Eva]

walmart(please read the write-up)

LOL...thanks man i did but i forgot the walmart part...thanks again and excellent write up.

[slimlou]

I think this was asked & answered b4, but I might as well ask it b4 someone else does. If I can get myself 2ohm speakers, I can use my stock HU & amp?

If you remove it, you'll need new speakers. I was doing some BOSE system research, and BOSE speakers are 2 Ohms. Regular car speakers are 4 ohms. So if you plug a headunit directly to the BOSE speakers, it'll look like a short and possibly overheat/burn up. Similar happens if you plug a "normal" speaker into a BOSE amp: it sees twice the load and output is cut in half.
My experience is that OEM speakers cannot handle the higher watt output of aftermarket Headunits, and they always blow within a few weeks....

lil lam said he wired the RCA pre-amp outputs into the BOSE amp and it sounded pretty good. Sounds like a good idea to me..




More direct answer to your question: If you plan on getting new speakers, then remove/bypass the BOSE amp.
If you're gonna keep the BOSE speakers, then you need to keep the BOSE amp b/c you'll fry your headunit if the speakers don't blow out first.

[Loco]

I think this was asked & answered b4, but I might as well ask it b4 someone else does. If I can get myself 2ohm speakers, I can use my stock HU & amp?

Lou,

The chances of you finding 2 ohm speakers are slim. =P

[slimlou]

Lou,

The chances of you finding 2 ohm speakers are slim. =P

Yeah you are right, it could be tough, but there's alot of pretty big stero places here in TO, that would be worth looking into. BTW, have you ever gone to check out 'East Hamilton Radio' They boast the best car audio in the S.ON area. As for 2 ohm speakers, I thought I saw that they make them for the Infiniti Kappa series. It cost nothing to look! lol