Homemade XM Portable #1 - BestTimesNow
This is a homemade portable unit that I made to use with my Sony XM tuner.  I used a 6V battery for a Play & Ride, kids riding vehicle.  This battery will last over 6 hours on a charge, if the display back-light is turned off. 

I plan to listen to XM during my daughters soccer practice which is 1 1/2 hours, twice a week.   A portable XM could also be used to listen to CNBC on the commuter train, if you lived in a big city.
I used a Terk antenna and mounted it on a universal mounting bracket, so that it could pivot.  I also used a headphone amplifier and attached it with Velcro tape.
A 5mm cap screw, wing nut & lock washer allows the antenna to pivot.
I used an inline volume control,  attached to the headphone amplifier, for the headphones.
I left the battery connection outside the box, for easy hook-up to the battery charger.
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