Ac new and ran for 4 months then stoped.

The clutch only has 2 wires one is ground the other is 12 vdc. Use meter to determine ground and then run wire from battery to + side. Warning, the unit will not cycle are designed, it will run all the time. Damage may occur.

use a jump wire from the positive battery terminal dorect to the power wire at the ac compressor
if the clutch plate slaps on when the wire is touched , nothing wrong with the ac clutch so look else where for the problem like no gas, too much gas , blocked tx valve , condenser fan not working or fuse

Did you put the engine to frame and engine to body grounds back on it?

How did you hook up the inline fuse to compressor and ground to compress ? Ground what ? Right at the clutch coil ? You have to be hooking it up wrong . The compressor can't cause the clutch coil to short or blow the fuse , even if the compressor were seized up . An before that would have the serpentine belt would burn up , squealing noise. applying B+ voltage in the relay socket ,pin 30 to pin 87 will engage the compressor clutch . If the fuse blows the wiring from the relay to the compressor clutch is shorted to ground . Look for rubbed through wiring harness .

Check to see if you have power at your AC, then have to check to see if you have power and ground at relay pins, if not trace wires, also your relay could be bad to

Looks like the low pressure switch gets power from a 10amp ac fuse. Power then goes to the ac relay which is powered on by the ac heat controller on the dash. Power then goes thru the high pressure switch to the compressor. The ac relay is grounded to the body. Do you have power on the lite and dark green wires going into the relay and is it grounded ?

SOUND LIKE AC COMPRESSOR CLUTCH COIL IS OPEN.ITS GETTING POWER YOU HAVE A OPEN COIL CIRCUIT.

The fans come on only when hot or the AC is on. There are many fuses that have to be good for it to work. The fan relay should have 2 pins hot with the key on, The other 2 should be ground. with the key off one should be hot and the other can then be ground the other pins that are ground one of them is the fan. the other becomes ground when the computer turns the fans on. If you don't have a pin thats hot at the relay all the time then theres a blown fuse or even the power wire from the battery at the battery

must have some wires chaffed through behind the dash ,causing the shorts ??

BBB Industries should have the TSBs and wiring diagrams for this as well .