Here's an odd question. I've been using a Line 6 G50, and lately a G55 wireless for my bass. The transmitter clips onto my belt. Works great. I'm thinking about adding wireless for my IEMs but it just occurred to me that would require adding a second unit. Is there some way to send the bass and receive IEM signals into one unit instead of having to carry two battery pack units? I can't stand all these gizmos hanging off my body and would love it if there was a way to use just one. Thanks.