my little brother has a 2002 or 2003 blazer and im gettin him a new HU for christmas. only thing is that crutchfield is askin about RDS when i do the outfit my car thing. is RDS like premium sound or something and how do i know if he has it or not?

also, are blazers a late model gm that requires the $100 wiring harness in order to keep door chimes and such like my 04 grand prix?

i appreciate the help!

 

RDS/ Stands for radio data system. When your on fm it usually displays the artist/ song info on the screen. Has nothing to do with sound or anything. Just receives a digital signal with information.

http://en.wikipedia.org/wiki/Radio_Data_System


Cant help you on the harness as mine is a 98 but I didnt need a special harness.

 

alright thanks for the help. i think i got all the info i need now.

 

i have a 01 and i didn't need the 100 dollar harness... the way u can tell if u need that harness is if the door chime comes out the door speakers or outta the dsah somewhere...

 

no the door alarms on the blazer models do not come out of the speker so you do not have to wory about that

 

They switched in something like 02 or 03 to have the chime come from the speakers. The harness has a little chime box that gets mounted in the dash. I didnt think there was a special harness for RDS or non-RDS though.

GMs in general from 02 or 03 up are a pain to do radios. Anything with On-Star needs a special (read: expensive) harness to make an aftermarket HU work, and even some models without on-star have the entire security system run through the stock HU, requiring a seperate specialty harness!

At least the factory Bose systems are easily integrated. Some imports with the premium sound systems need all speakers replaced or all new speaker wire ran when a new HU gets installed [:@]