Park Light Fuse blows and blows.

[heavyd10000]

OK I know there are a few threads about this but none help.

1996 SL2

The other day at night, i turned on my lights and the park lights came on and then off (blew fuse), and now i replaced the fuse and blows right away.

What i have done is check the wiring beside the light plugs (brake/park, front signal/park, front single bulb marker) and have taken every light out stated above.

I have also taken the the connectors off of the dash, heat/ac controls, and taken out the radio.

And i put my multimeter in place of the fuse and its pulling over 20 amps (10 amp fuse)

Is there any place i should be looking next for a short??

Oh yes there is trailer wiring with a black box from crappy tire.

So i need ideas!!