Its not required but always recommended and may be your problem recon also sell relays for this

If you are adding HIDs to your vehicle, RECON recommends running dedicated 12-Volt power from your vehicle's battery directly to your HIDs (or directly to any other High-Power 12-volt auxiliary lighting which you may have added to your vehicle such as High-Power LED Driving Lights, LED Daytime Running Lights, etc.) This will ensure a full 12-Volts at all times and eliminate electrical issues and error codes from appearing on your vehicle's dash.

RECON Part # 264RELAY5 - 5-PIN 12-Volt 30/40A Relay w/ 5-PIN Interlocking Wire Connector - Includes 10 inches of 16 AWG Blue, White, Yellow, Black & Red Wire

12 VDC, 30/40A waterproof relay with stainless steel metal mounting tab. Features a sealed plastic housing for applications requiring water resistance. Also includes pre-wired relay socket for use with 12 VDC Bosch type five terminal relays. Five 10" 16 AWG power & coil control wires. Features interlocking sides which allow you to easily gang multiple sockets together.[/B][/TD]