After Aftermarket Radio Installation????

[mmpower]

Did you have any issues with radio reception after installing your aftermarket head unit???

I just installed my Pioneer head unit and FM Radio reception is crap!!!

It's either I forgot to plug in the attenna (which I know I didn't forget) or I just have a shitty head unit!

Anyone?? If you did, did you do anything to fix the issue??

I have a E46 by the way!

Thanks