I'd also like the info! That would be much appreciated! Also, here, half way down the page (just before the Stinger section) is a IF repeater http://www.installer.com/acc/ but this one is about $40, but sounds like the same idea, and yours sounds much more ecconomical!
This site has tons of useful electronic items like this, so it may be a good reference if nothing else?
Thanks - Brett - 67 Drop Top 455! brett@cisdirect.com