Manual with no tachometer tips

[maineyaris]

So I just got a 2009 Yaris 3 dr LB on Saturday and am trying to adjust to driving with no tachometer. I like the car so far. I was hoping to get some tips. When I can hear the engine it is no problem, but I am always listening to loud music when I drive, and I can't hear the engine when I do.

I drove a 01 Hyundai Accent for years and it drives way different. this is what I generally do:

25 mph - 3rd gear

25-40 mph - 4th gear

above 40 mph - 5th gear

Does that seem right or is there another method to get used to.

I was thinking of getting an ecometer or scangauge but i read that there is a delay and can't be relied on as a tachometer.

any advice would be great.