wiring xm and cd changer to sony HU

[subboxmaker 10+ year member]

Allright i have a sony headunit with a cd changer hooked up through the xa-300 auxilary adapter. http://www.crutchfield.com/S-KyEKDopg9Pv/cgi-bin/ProdView.asp?g=50900&I=158XA300

now im trying to add XM to it but i can only get the xm to work thru the cd changer bus or the cd changer to work and not both. i can get the xm to work through the auxilary input but then i cant change channels on the headunit. I just wired up sirius in another setup and there was an input on the actualy sirius control box but on the xmd1000 there isnt an input to wire in a cd changer. Is it possible to hook up both or is it one or the other? thanks

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[subboxmaker 10+ year member]

anyone? still cant seem to figure out how to get both to work...

 

[93 saturn sl2 10+ year member]

Sony makes a thing so you can connect like 3 things to the bus-in on the HU. I think its like $70 or something like that.

 

[subboxmaker 10+ year member]

do you have any idea what the model number is or what its called. i cant seem to find it. Thanks for the help

 

[subboxmaker 10+ year member]

allright thanks i think its the XA-C40