I've got a Trio+ that I've been using to practice with. Up until I got my XT Pro, I used a Boss GT3 in the effects loop of the Trio+. I can do the same with the XT, but it's rack mounted and I hate to have to run the guitar into the front of the unit. Is there any way I can use the line level input in the back? My guitar needs to run into the Trio+, then a line needs to go from the Trio+ effects loop out to the front of the XT, then the XT signal out goes to the Trio+ effects loop return and a fourth cable goes out to a speaker. Basically what I've heard called the "four cable" setup. Why do I need to run the signal in from the back of the unit? Because it's rack mounted and inconvenient to have to run the signal line to the front of the unit. Everything inside is board mounted, so it's not like I can just swap the input jacks around. I wish it were that easy. Any suggestions on how I can get an instrument input in the rear of my XT Pro?