I have a CDX-M630 car stereo which I bought on e-bay from the USA. I have a problem in searching stations. On FM the search goes in increments of 0.2 on odd numbers. ie 95.5, 95.7, 95.9 etc. Is there any way of changing this to go in increments of 0.1 or to make it search even numbers, ie 95.6, 95.8 etc.