i use maxi cosi. both infant seat and now the bigger car seat. which model do you have? try to search on youtube if u have carseat model name? it is quite easy. there are some pictures on the side/back panel of the car seat itself. there is also a manual for reference. if all else fails, go down to Shun Li baby hyperstore n ask the staff to demo for you. they have an actual vehicle seat there n they can demo n install any of their display car seats (provided they sell that model you have). you can also have hands-on to try it out. cheers,
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the carseat itself comes with a instruction booklet. If not you can try google some youtube video. It's easier with a video demonstration.