A:AnswerHello,
The port on the Portable CD Player is designed for earbuds. If you try to hookup to your truck the AUX cable may not send the sound to the vehicle.
A:AnswerWith regard to the power adapter, the case says 4.5 volt but the description on Memorex website says 5 volt. I found something on Amazon that I’m going to try, as my new car has USB ports: USB Type-A Male to 5.5mm x 2.1mm Barrel 5V DC Power Cable with 4 Connectors. Hopefully one of the connectors fits, as Memorex also doesn’t indicate pin size needed for the AC/DC jack.
A:AnswerThis is a Christmas gift for my son-in-law. However, I do not believe that their are built ion speakers. You need to either use headphones or an Auxiliary cable.