Wiring up an aftermarket Stereo.
Wiring up an aftermarket Stereo.
Author
Discussion

ZR1cliff

Original Poster:

17,999 posts

270 months

Wednesday 23rd March 2005
quotequote all
Ive decided to update the stock stereo and speakers for an aftermarket system,has anyone done this recently? if so can you advise me what wires i will need from the plug ive just unpluged from the rear of the stock stereo,i think i need a permanant live,ignition live and earth,is this right?
Thanx

c4koh

735 posts

265 months

Wednesday 23rd March 2005
quotequote all
Cliff - I'll be interested in following this one as well, as I'd like to perhaps replace my stock unit with a decent unit, mainly to be able to play CDs I've copied at home...

vetteheadracer

8,273 posts

274 months

Wednesday 23rd March 2005
quotequote all
Not sure of the ZR1 is the same as the 1996 LT4....but if it is you guys are in for fun.....

The "head unit" (bit in the dash) is passive i.e. does not have an amplifier. It communicates with the radio module which lives under the jack holder behind the passenger seat. All the speakers are wired into this radio module. All the speakers have amplifiers on them.

Therefore if you want to use the standard Bose speakers with an aftermarket head unit then you need to buy a gizmo to stepdown the amplified signal.
Good news is Clarion do a UK spec double din (fits the hole in the dash) CD/Radio/Tape player which is brilliant. If you decide to replace all the speakers as well then you don't need the gizmo which is cheap (about $20) but you will need to get one from the US.

Please disregard all of the above if the ZR1 doesn't do it like this

Gixer

4,463 posts

269 months

Thursday 24th March 2005
quotequote all
VHR is about right, only the radio lives up under the dash by the glove box.

I have replaced stereo and speakers twice in mine now. Chuck the stock head unit, decide if you are keeping the Bose speakers (they are ok(ish)) if you do then junk the amps on each speaker, buy a decent amp (one that you can switch between 2 and 4 ohm as Bose have to be different to everybody else and away you go.

Oh yeah, seats out, centre console out, rearlockers out, door trim out and away you go. As for the radio dont even bother getting to that, there is a connector to the aerial on the driver's side about mid wheel arch plug a new cable in there and run it. disk changers fit welll in the rear lockers and fill ya boot up with speakers and keep that arse end well planted on the road

c4koh

735 posts

265 months

Thursday 24th March 2005
quotequote all
Crikey Brett - I'm only on my first cup of coffee so I'll re-read that condensed bit of info first!!



All what you said though: is it straightforward(ish), albeit a pain in the arse??

ZR1cliff

Original Poster:

17,999 posts

270 months

Thursday 24th March 2005
quotequote all
Ive found this thread if it helps http://forums.corvetteforum.com/showthread.php?t=941281

Nige,i couldnt find the amp/module behind the passenger seat in the pod,ime going to ditch all the old stuff and rewire all new speakers in so ime not to worried
The rear speakers ive bought match and fit the old fixing holes the front speakers look like they can be reused without the amps if not i will fit new ones,ive got the head unit fixed in so over the weekend ime gonna look at the wiring.
Keep you imformed how it goes

Gixer

4,463 posts

269 months

Thursday 24th March 2005
quotequote all
ZR1cliff said:
Ive found this thread if it helps http://forums.corvetteforum.com/showthread.php?t=941281

Nige,i couldnt find the amp/module behind the passenger seat in the pod,ime going to ditch all the old stuff and rewire all new speakers in so ime not to worried
The rear speakers ive bought match and fit the old fixing holes the front speakers look like they can be reused without the amps if not i will fit new ones,ive got the head unit fixed in so over the weekend ime gonna look at the wiring.
Keep you imformed how it goes


VHR is about right, only the radio lives up under the dash by the glove box.

as for using the fronts without the amps - it wont work - they'll be shit as they are the wrong ohmage

First time round I wired them to a Kenwood amp that could be switched to the correct ohmage. Second time around I junked the pre-formed plastic speaker boxes they come in and made my own. I then measured up (lack of depth being the issue) and went to a small car stereo place that I have used for years and got them to get my the best speakers for the size of the hole.

ZR1cliff

Original Poster:

17,999 posts

270 months

Friday 25th March 2005
quotequote all
Thanks Brett ,that saves me muckin about with the fronts,ile go and get some more speakers for the front today.
The radio?,what you see in the stock head unit is only a visual aid to find the channel,the radio reciever is under the glove box?