Yo every one i got a 99 deville
I'm trying to put a system but I hook up the radio with a harness but will not work stock radio dose work tho any one know how to by pass this would really help me out email me at cgokor@yahoo.com
Thanx

 

Depending on the style of the DeVille, I had to learn the hard way, taking it to a local shop to install my double din.

Since the Concours (in my case) has the integrated 11-speakers and phone, it wasn't able to work well with the one they installed when they recommended me to buy online. Now i am dealing with me Trip resetting after each other nigh and all my MPG,Fuel Used, AVG MPH also. And it doesn't work with the antenna or the 12 disc changer from the trunk. The memory setting chimes don't work either and its buggy but i guess its what i get for trying to save..

Point is, what sub-model do you have and what kind of head unit are you trying to install.