Hey Im new.If I have set up the trip computer when I change my factory stereo to an aftermarket stereo will the trip computer continue to work, and if not how can I make it? By the way I have an 07 mazda 3

 

is it bose or not? Usually your trip computer will not probably not work. You will have to a) find a dash kit which will support it, or b) find an aftermarket head unit which has a trip computer in it.

 

It is not the bose.

 

Well a stereo swap will probably be less complicated without the bose, however, you will still need one of the two thing listed above or your trip computer will not work

 

is there a way to install aftermarket raido and still have the steering wheel controll?

 

Yep, did it on my Speed 3. You have to buy a steering wheel control kit, that lets you program the steering wheel controls to the new stereo. The controls will feel sluggish compared to how they work with the factory stereo, but they'll work.

 

No,as I know we don't need to buy an external steering wheel controls to the new stereo...I found a dvd player that has the steering wheel control for it,you can learn it here http://www.sundaybuy.com/doce/prod_show.aspx?pid=15
it seems that it is easy to change the factory stereo without cuting power cables or others,great unit.