Adding cardio, need advices

[F4iGuy]

I'm going to compete in 5 months and looking to add cardio in a way that minimizes muscle loss and maximizes fat loss.
Current stats:
5' 6"
178lbs
9% BF

Goal (in 5 months)
165lbs
5-6% BF

Current Routine:
Mon- Back
Tues-Chest/Abs/17min PWO HIT
Wed-Legs
Thurs-Shoulders/Tris/17min PWO HIT
Fri-Arms/17min PWO HIT
Sat-Rest
Sun-Rest

When would be the best time to add AM Cardio in this routine? I'd like to start with 2 3o minute sessions and go from there. What 2 days would be best? I'm thinking Saturday and Sunday? Keep in mind I'm not using anabolics.

[energizer bunny]

you could start by adding cardio on sat and sun.....if i remember correctly fireguy does cardio 7 days a week leading upto a show.....