focus st170 stero keeps goin off
hi people i have a 52plate st170 i have a kenwood stero fitted to fit about 2 months ago. It has been fine til 2 days ago when the music went off. if you hint a bump it brings the music on and off or if you slam on the brakes or accel fast it comes on. I have checked all the plugs on the back of the stero there are fine.
I can put the stero in my brother car and it works fine. I put another stero in my and it didnt even turn on.
Any ideas will be great.
thanks guys.