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For the Volvo 780 (2014). I want to add a powered sub like a Bass Link or a tube. To install this do I just tap into the rear speakers in order for the powered sub to have the proper signal. Also will this effect the factory set up considering it has
March 15th, 2014
You can tap off the rear speakers if you use the proper rated preamp adaptor.  This adaptor will change the speaker output level to RCA outputs. Hooking it will not have a factor on the origional speaker sound.
This would be the correect way although some amps will accept speaker line output as the source feed.  We there is a amp driving the speakers it is better to preamp the output.  Most all amp manufactures have filters built in to reduce noise on the RCA inputs.
Changing the speakers out can go either way.  Trying to install speakers that require a larger baffel to work in the specific opening would hurt bass quality.  The mids and highs would not

how do you pullout a radio on a kenworth 2008 T660
March 5th, 2014
The radio has 2 small holes on each side of the face.  There you insert a set of removal keys to release the radio.  Push the keys into the holes until you feel tension and then push about 1/4 in deeper to release clips, pull the radio out.  Here is a link for removal keys.  They are at the bottom of the
I bought the cq-rx470u it says it is xm ready my attenna will not plug in why and what am i missing last panasonic had xm and worded this is an upgrade but won't plug in help have spent $93.00 so far and sirs STILL has not sent me right stuff
February 14th, 2014
The Panasonic CQ RX470U is a XM ready type of stereo.  When a radio states it is XM READY this means it has the ability to run a Satellite tuner which is sold as a seperate piece of equipment.  The Satellite antenna plug is on the seperate tuner.  The Panasonic takes the newer style tuner SIRIUS/XM shown here as the SXV200V1.  This tuner will give you the best of Sirius and the best of XM. We sell it in a combo package on this page as well including the truck harness   Read more...
We have a MY2004 Western Star 4800FX Constellation. The plugs you have listed for Western Star dont seem to match the one on our OEM harness. Is there som eWestern Star models you dont cater for?
February 8th, 2014
A lot of the models crossover when it comes to the radio harness. The year of the truck is more important that the model of a brand  If you don't see your model listed you need to pull the radio out to examine the connector. Send the pic to us and we might be able to ID it.  Also the harness you might be looking at is what we call a jumper harness,
 Jumper harness
 Here is an example.  The plug in the hand is the one that plugs into a specific brand radio.  The harness we want to mate to is the 2 shown closer to the dash..

 Email your pics to:

I just bought a 2014 Volvo 780. The stock radio has Bluetooth and also has steering wheel controls. Is there a way to use this radio to add the ability to run amps. If not. I do have a ken wood head unit that i had in my old rig and was running 3 amp
February 6th, 2014
You can add an amp to any radio with the use of a preamp adaptor.  This device hooks to (in your case) to rear left and right speakers outputs to reduce the output to a preamp level which is the correct input source for an amp.  The you can connect RCAs to RCAs. The adaptor can be bought at most stereo shops like Best Buy.  Ask for a Preamp   Read more...