champion help

I have a 08 210 elite

I put a new graph on the bow . When I turn on my power button it now blinks instead of staying on solid . All my other buttons work as they should except my storage lights , it also blinks and no lights come on .

Thoughts?

Bad ground.

I had a 858 up there now 1198, used the same power cords , ones positive and one negative . There is no ground wire