That's all I want to know: Can I run an amp kit to my stock head unit/stereo on my 2003 ZR2 Blazer?

 

I wouldnt do it. Stock speakers arent really meant to handle much power other then that produced by the headunit

 

if your talking about hookup up a amp for subs and running a stock radio u need what is called a "line out converter" this will give you your preouts for the rca in able to hook up you amp to the stock radio

 

That's it Blue! Thanks for the help, brother.
Jag, sorry man, guess I wasn't very clear on what I was saying.

 

What do you guys think Best Buy would charge for the kit and install? (900+ watts amp kit)

 

way to much for such an easy install...Do it yourself bro it really is easy as hell.

 

yea I wouldn't let best buy do it. they charge wayyyyy to much. if you really don't feel confident with doing the install I would check out a local car audio place they won't charge you near as much as best buy.

 

Yeah, I just don't have alot of time is the biggest factor. Where could I find a guide on installing one? What about the line out convertor, what do I do with that?

 

this will help you out
http://forums.genvibe.com/zerofile/6208/fai.jpg

you can tap it into the back of the radio speaker wires... it taps to the original speaker wires and gives you the preout..

a basic 2-channel LOC has 4 speaker level input wires and 2 line-level RCA outputs. you connect the 4 speaker level input wires to any left/right speaker wires (it doesn't matter if they are front or rear). you will need to figure out which wires are pos/neg; the speaker terminals are often marked, if not then search on google for your car's speaker wire colors (polarity). you will need a set of RCA cables to connect the LOC's line-level outputs to your amp's RCA inputs.

NOTE: if your amp has speaker-level inputs then you don't need an LOC at all. just hook your left/right speaker wires directly up to the amp"s speaker level inputs

LR+ Brown
LR- Yellow
RF- Dark Green
RF+ Light Green