Originally Posted by sun1145
I recently installed a BTA850FH in a 2007 Mazda 3 but it doesnt appear to be receiving any power.
I connected the red wire on the fast harness to -Car Radio Battery Constant 12v+ Wire: Orange/Black. I connected the blue/white wire on the fast harness to -Car Radio Accessory Switched 12v+ Wire: Orange/Black with Silver Dots.
The speaker wires are all connected to the correct wires from what I can tell.
I have found this issue posted in Mazda forums but no one ever appears to post a resolution
. Any help is greatly appreciated!
Where is your ground connected?