I installed my new HU and the FM reception is poor. From the reviews it's supposed to be very good, but it's worse than stock. What should I do?
It's a rat's nest behind the HU so maybe interference?
Should I look into a booster? Seems only recommended for an in-glass antenna.
I have a shorty antenna but had it on with the stock HU.

It's a rat's nest behind the HU so maybe interference?
Should I look into a booster? Seems only recommended for an in-glass antenna.
I have a shorty antenna but had it on with the stock HU.