Do I really have to use the headphones that were included for this radio. I dont really like the sound of the altec lansing headphones. But whenever i connect mine I get completely no signal....even in my own backyard. When I use the altec headphones I get about 2 bars outside and 1/off inside. I understand that the car/home kits are really worth having then to avoid these signal issues. But I would like to use my normal headphones when I'm outside walking/etc.