Sorry I didn't see this sooner but here is the link to the inverter I used when I had a Neo 35. (Anyone looking for a used Neo )

http://www.jameco.com/cgi-bin/ncommerce3/ExecMacro/Jameco/searchResult.d2w/report?sort=BKW&search=sd-25a-12

This may be a little larger wattage wise than you need but it is physically small enough to fit behind the cubby/under the Empeg/on top of the Airbag controller in the Boxster.

This one is less expensive but I haven't seen one and don't know if the output voltage is adjustable (a handy attribute) as is true of the first one I referenced.

https://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=4383&cgrfnbr=780&ctgys=503;528;780;

I ended up with a massive ground between the Becker and the Rio with good results. I don't really have a problem with the Becker other than the poor sensitivity of the radio, which I think is mostly due to the Boxster antenna. I won't be drilling any holes in the body for a conventional whip antenna!

It takes both units to cause this problem, The Becker has poor common mode rejection on the Aux inputs and the Empeg produces plenty of ground noise on the audio outputs. I have measured 3-4 mv RMS across the sled's ground wire and this noise current is happy to pass through the audio output shields right into the Becker.


Good luck,

Lynn