The receiver has two spring terminals for an external antenna. It also came with a small AM antenna that is the little wire wrapped around a plastic loop, then the wires twist together until them terminate on the receiver. how much length can I add to the twisting part?

What if I mount the AM antenna that came with the stereo on the roof, then run a cat5 (to get a twisted pair) between the two?
BTW thanks for the quick response Hal.

[This message has been edited by Jps1006 (edited 04-28-2005).]