I know you're helping them out a lot but it really annoys me when you don't just do this
no problem! I'm pretty sure that it was this model, but look around amazon a little more because this same model is listed somewhat differently here and there and you may find a better deal than whats in the link http://www.amazon.com/M-Audio-Track-Mobile-Interface-Preamps/dp/B000BD31ZW
if you read the questions on amazon these questions have been answered by the seller. you can get a preamp for about 50-60 bucks at the pawnshop. itll look something like this http://www.amazon.com/M-Audio-Fast-Track-USB-Interface/dp/B002QZ402Q/ref=sr_1_1?ie=UTF8&qid=1434547315&sr=8-1&keywords=m+audio+fasttrack&pebp=1434547316958&perid=17ZWPQZPDB02XWXSMKV4
or this