ever time i turn on my heater its sounds like a whistling sound the more i turn it up the louder it goes. sounds like a plane in my car.

 

Without knowing your cars age or mileage I am gong with the obvious
Plugged Cabin Air Filter

Just look thru the threads and there is a DIY with pics for Cabin Air Filter
Part is about 20 bucks
simple job to replace the special filters that clean the air coming into the car
Many find theirs black and plugged

 

No cabin air filters on '96 - '98 TL's

 

ken your right no cabin filter. i think maybe a door or something around the blower might me open because it happend after i got my blower motor installed last year.