2001 land rover

I'm installing a avital 4103 starter into 01 Land Rover Range Rover 4.6 hse, the wires are pretty simple...just the Starter, Ign, and Acc is negative... i thought of just use relays to convert the polarity...just want to make sure...see if any one can know about this,,second opinion always good =)

	Battery		BROWN / LIGHT GREEN		(+)		UNDER DR DASH OR GO TO BATTERY
	Ignition 1		WHITE !!!!!!		(-)		IGN SW HARNESS"SW HARNESS ARE GROUND NOT
	Accessory 1		WHITE/ PINK !!		(-)		IGN SW HARNESS"GROUND NOT POSITIVE"
	Starter 1		WHITE/ RED		(-)		IGN SW HARNESS "NEGATIVE"
	Anti-Theft Descript		NONE
	Tachometer		WHITE STRIPE		(-)		DIS COIL PACK REAR OF ENG 2 CYL(INJ 1 CY
	Speed Sense		YELLOW /GREEN		(AC)		PIN 11 AT ECM UNDER PASS SEAT TRIM
	Parking Lights		ORANGE / RED		(-)		BCM BELOW PASS SEAT FRONT SEAT
	Brake Lights		GREEN/ BLUE		(+)		BCM UNDER PASS SEAT FRONT
	Reverse Lights		LIGHT GREEN		(+)		AT BODY CONTROL MODULE
	Horn		VIOLET/BROWN		(-)		AT BODY CONTROL MOD "BELOW PASS SEAT"

Looks like relays...Although some units have (-) ignition,acc and starter outputs...!