I need help with my 2003 chev impala
 

hello, im brand new to installing car audio, and i need some questions answered about my 2003 Chev Impala, i just purchased an new head unit, front speakers, and rear speakers, i would like to just put out there that i know next to nothing about this kind of stuff, but i am willing to learn as much as i can, so please no trolling. so first question that i have is that my head unit, which is an JVC KW-610, my front speakers are JVC CS-V637 6.5 and the rear ones are JVC CS-V627

-How complicated would it be to install it into the car? willl my steering wheel still have the controls for volume, radio, and such?
- will the head unit be able to power all speakers because on the box it says 20rms for 4 channels but the rear speakers are 30rms each?

please can someone help or give me some insight into this? it is killing me having these parts laying around my house lol

-How complicated would it be to install it into the car?

That depends. For me, not very, but I've been doing this a while. For you, a novice, it may be quite a challenge. You didn't mention any parts - you will need a dash kit (that's a double din deck right? is your dash double din?), antenna adaptor, and wiring harness with interface - hopefully you don't have OnStar or Bose...

willl my steering wheel still have the controls for volume, radio, and such?

Not without additional parts.


- will the head unit be able to power all speakers because on the box it says 20rms for 4 channels but the rear speakers are 30rms each?

Yes it will power them.

I have an dash adpater kit i brought at wal mart alog with an antanna adapter what is an wire harness with interface? Amd how much are they typicaly priced at? Thanks for giving me insigjt into my problem here i have some more questions if you dont mind taking the time to answer them?

So i took the door panel apart and on crutchflied it says the fronts are 6.5s but the holes did not match up with i took the stock speaker off and i tried putting the jvc one in but the holes did not match up also i heard i did not need the that speaker harness that the stock speaker is hooked up to? Is this true and if it is how do i hook it up?

Go on youtube and see what videos you can find showing how to install with you vehicle .
There are tons of "how to" vids out there and im sure you can find plenty of impala vids becuase its a popular car.

I have searcjed youtube and google if i wasnt stumped for answers i would not have searched for this site and registered not to sound rude or anything. But i came here looking for more insight on the technical aspect of car audio as i am brand new to this stuff.

Most GM cars newer than 2000 need more than just a basic wire harness adaptor (the harness for the JVC has both a different shape plug and has different colors than the Chev harness). The one you need, provided you do not have Bose or OnStar is generally available from a shop for $120-$150

GM is also notorious for having goofy speaker mounting, especially in the doors. A stereo shop should have adaptors available or you can make your own.

Well iy looks like the head unit is out of the question i just dont have that much to throw at it.. But the speakers.. Can i just drill new holes into the plastic speaker mount? Would that work? And sincr the head unit is no longer a go will these aftermarket speakers be fine with the stock head unit?