I need the wiring diagram for the cable and TV hookup.

Not sure which side of the trailer hookup you are asking about,but......The 7 blade plug will have a spot to attach a blue brake wire.You should add a brake controller to your vehicle so you can use the brakes on the RV,supplying power on the blue wire when needed.

The cable hook up is almost always in a driver's side compartment, mine is in the compartment with the shore cord, not the water hook up. Remember that if you have an antenna booster it must be turned off or it will interfere with the cable signal.

Wiring diagrams typically are not available. However, Contact your local retailer/service center directly or online here:
Contact by Highland Ridge RV

Contact your local retailer directly or online here:

Only answer I got for you is where ever they felt like that day. I am a rv tech and can't ever get a straight answer out of manufacturer on locations of most wiring. What I have found is it is useually around the furthest tv from the cable hookup. If you only have 2 tvs in the unit the wall plate for the antenna bossier is the splitter for the 2nd tv.

With todays phones, it is always best to take a pic of the actual wiring hookup... Go to google, maybe they have a wiring diagram for it.

Wiring diagrams are not available as the manufactures to not publish them. On the back of the stereo system there will be a basic diagram that may be of assistance.